Positron Teleline 751109/15, Description And Installation

Page: 40 / 57

40
8-card Shelf CCC model 751109/15
³ To power the shelf via the power cable
The shelf may be powered via the DC power cable supplied in the kit (the one
without a plug). In this case feed the power cable through the lower hole on the
Station side and connect it directly to TB1 and TB2. Make sure the correct wire
colors are used. For an illustration of this type of external powering, refer to Figure
5 on page 33 and Table 5 on page 40.
1. Make the cable connections. For a list of the connector positions when using
a power cable, refer to Table 5.
Table 5: Powering the 8-card Shelf CCC model 751109/15 via Power Cable:
N
OTE
Q
When using the DC cable to power the shelf directly to TB1 and TB2,
the grounding of the shelf MUST BE done through the ground lug on
the side of the shelf because the ground wire and 0 V wire will not fit in
the same terminal block pin. Therefore cut off the green wire on the
cable.
Description Connector Position DC Cable Wire Color
Ground (positive or 0 V) TB1-2 Black
Auxiliary Power (negative) TB1-1 White
-24 Vdc input TB2-1 White
-48 Vdc input TB2-2 White
Note: For floating 130 Vdc, connect the live or positive wire (White) to TB1-1 and the return or
negative wire (Black) to TB2-2.